United States former president Thomas Jefferson ended the Barbary War since:
C. He refused to pay the bribe and blockaded Tripoli.
It was usual that in the years before the war, Western nations paid bribes to the Barbary states, which would then become Morocco, Algeria, Tunis, and Tripolitania, to keep them away from harassing American and merchant ships.
When the Pasha of Tripoli, Yusuf Karamanli, raised his demands in 1801, Thomas Jefferson refused to pay the increase, sent warships to the Mediterranean and blockaded the small nation. The war ended with agreements that involved one last payment of tribute, at least to Tripoli.
On June 10th 1805, the Pasha of Tripoli signed a treaty ending hostilities since there was a threat of a continued advance on Tripoli and a scheme to restore his deposed older brother Hamet Karamanli as leader.
In the final document of the treaty, a ransom of $60,000 was agreed based on the number of american captives held by the pasha.
